Move everything into the FileSrc implementation

src/rsfilesrc.rs

@@ -1,14 +1,9 @@
 use libc::{c_char};
 use std::ffi::{CStr, CString};
-use std::{ptr, mem};
+use std::ptr;
 use std::u64;
 use std::slice;
 
-#[derive(Debug)]
-pub struct FileSrc {
-    location: Option<String>,
-}
-
 #[repr(C)]
 pub enum GstFlowReturn {
     Ok = 0,
@@ -25,10 +20,59 @@ pub enum GBoolean {
     True = 1,
 }
 
+impl GBoolean {
+    fn from_bool(v: bool) -> GBoolean {
+        match v {
+            true => GBoolean::True,
+            false => GBoolean::False,
+        }
+    }
+}
+
+#[derive(Debug)]
+pub struct FileSrc {
+    location: Option<String>,
+}
+
 impl FileSrc {
     fn new() -> FileSrc {
         FileSrc { location: None }
     }
+
+    fn set_location(&mut self, location: &Option<String>) {
+        self.location = location.clone();
+    }
+
+    fn get_location(&self) -> &Option<String> {
+        &self.location
+    }
+
+    fn is_seekable(&self) -> bool {
+        true
+    }
+
+    fn get_size(&self) -> u64 {
+        u64::MAX
+    }
+
+    fn start(&mut self) -> bool {
+        match self.location {
+            None => false,
+            Some(_) => true
+        }
+    }
+
+    fn stop(&mut self) -> bool {
+        true
+    }
+
+    fn fill(&mut self, data: &mut [u8]) -> GstFlowReturn {
+        for i in 0..data.len() - 1 {
+            data[i] = 1;
+        }
+
+        return GstFlowReturn::Ok;
+    }
 }
 
 impl Drop for FileSrc {
@@ -53,10 +97,10 @@ pub extern "C" fn filesrc_set_location(ptr: *mut FileSrc, location_ptr: *const c
     let filesrc: &mut FileSrc = unsafe { &mut *ptr };
 
     if location_ptr.is_null() {
-        filesrc.location = None;
+        filesrc.set_location(&None)
     } else {
         let location = unsafe { CStr::from_ptr(location_ptr) };
-        filesrc.location = Some(String::from(location.to_str().unwrap()));
+        filesrc.set_location(&Some(String::from(location.to_str().unwrap())));
     }
 }
 
@@ -64,7 +108,7 @@ pub extern "C" fn filesrc_set_location(ptr: *mut FileSrc, location_ptr: *const c
 pub extern "C" fn filesrc_get_location(ptr: *mut FileSrc) -> *mut c_char {
     let filesrc: &mut FileSrc = unsafe { &mut *ptr };
 
-    match filesrc.location {
+    match *filesrc.get_location() {
         Some(ref location) =>
             CString::new(location.clone().into_bytes()).unwrap().into_raw(),
         None =>
@@ -78,42 +122,34 @@ pub extern "C" fn filesrc_fill(ptr: *mut FileSrc, data_ptr: *mut u8, data_len: u
 
     println!("{:?}", filesrc);
     let mut data = unsafe { slice::from_raw_parts_mut(data_ptr, data_len) };
-
-    for i in 0..data.len() - 1 {
-        data[i] = 1;
-    }
-
-    return GstFlowReturn::Ok;
+    return filesrc.fill(data);
 }
 
 #[no_mangle]
 pub extern "C" fn filesrc_get_size(ptr: *mut FileSrc) -> u64 {
     let filesrc: &mut FileSrc = unsafe { &mut *ptr };
 
-    return u64::MAX;
+    return filesrc.get_size();
 }
 
 #[no_mangle]
 pub extern "C" fn filesrc_start(ptr: *mut FileSrc) -> GBoolean {
     let filesrc: &mut FileSrc = unsafe { &mut *ptr };
 
-    match filesrc.location {
-        None => GBoolean::False,
-        Some(_) => GBoolean::True
-    }
+    GBoolean::from_bool(filesrc.start())
 }
 
 #[no_mangle]
 pub extern "C" fn filesrc_stop(ptr: *mut FileSrc) -> GBoolean {
     let filesrc: &mut FileSrc = unsafe { &mut *ptr };
 
-    return GBoolean::True;
+    GBoolean::from_bool(filesrc.stop())
 }
 
 #[no_mangle]
 pub extern "C" fn filesrc_is_seekable(ptr: *mut FileSrc) -> GBoolean {
     let filesrc: &mut FileSrc = unsafe { &mut *ptr };
 
-    return GBoolean::True;
+    GBoolean::from_bool(filesrc.is_seekable())
 }